diff options
| author | Kerry She <Kerry.she@amd.com> | 2011-01-01 17:44:07 +0000 |
|---|---|---|
| committer | Uwe Hermann <uwe@hermann-uwe.de> | 2011-01-01 17:44:07 +0000 |
| commit | 799fed98ea57fc9632b7bf95b3f1d79519cbdd15 (patch) | |
| tree | 94d053f98639980e357b9fba1b404bec153e052c /src/vendorcode/amd/cimx/sb800/AMDSBLIB.c | |
| parent | 123edb0f688f2c6b7146929d6650751f6674a95c (diff) | |
Add AMD SB800 southbridge CIMx code.
The main CIMx code is in a src/vendorcode directory and should not be
changed with regard to coding style etc. in order to remain easily syncable
with the "upstream" AMD code.
Signed-off-by: Kerry She <Kerry.she@amd.com>
Acked-by: Stefan Reinauer <stepan@coreboot.org>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6229 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/vendorcode/amd/cimx/sb800/AMDSBLIB.c')
| -rw-r--r-- | src/vendorcode/amd/cimx/sb800/AMDSBLIB.c | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/src/vendorcode/amd/cimx/sb800/AMDSBLIB.c b/src/vendorcode/amd/cimx/sb800/AMDSBLIB.c new file mode 100644 index 0000000000..d428ede8b8 --- /dev/null +++ b/src/vendorcode/amd/cimx/sb800/AMDSBLIB.c @@ -0,0 +1,142 @@ +/**
+ * @file
+ *
+ * Southbridge IO access common routine
+ *
+ *
+ *
+ * @xrefitem bom "File Content Label" "Release Content"
+ * @e project: CIMx-SB
+ * @e sub-project:
+ * @e \$Revision:$ @e \$Date:$
+ *
+ */
+/*
+ *****************************************************************************
+ *
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2010 Advanced Micro Devices, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ * ***************************************************************************
+ *
+ */
+
+#include "SBPLATFORM.h"
+
+/*----------------------------------------------------------------------------------------*/
+/**
+ * SbStall - Delay routine
+ *
+ *
+ *
+ * @param[in] uSec
+ *
+ */
+VOID
+SbStall (
+ IN UINT32 uSec
+ )
+{
+ UINT16 timerAddr;
+ UINT32 startTime;
+ UINT32 elapsedTime;
+
+ ReadMEM (ACPI_MMIO_BASE + PMIO_BASE + SB_PMIOA_REG64, AccWidthUint16, &timerAddr);
+ if ( timerAddr == 0 ) {
+ uSec = uSec / 2;
+ while ( uSec != 0 ) {
+ ReadIO (0x80, AccWidthUint8, (UINT8 *) (&startTime));
+ uSec--;
+ }
+ } else {
+ ReadIO (timerAddr, AccWidthUint32, &startTime);
+ for ( ;; ) {
+ ReadIO (timerAddr, AccWidthUint32, &elapsedTime);
+ if ( elapsedTime < startTime ) {
+ elapsedTime = elapsedTime + 0xFFFFFFFF - startTime;
+ } else {
+ elapsedTime = elapsedTime - startTime;
+ }
+ if ( (elapsedTime * 28 / 100) > uSec ) {
+ break;
+ }
+ }
+ }
+}
+
+/*----------------------------------------------------------------------------------------*/
+/**
+ * SbReset - Generate a reset command
+ *
+ *
+ *
+ * @param[in] OpFlag - Dummy
+ *
+ */
+VOID
+SbReset (
+ IN UINT8 OpFlag
+ )
+{
+ UINT8 Temp;
+ Temp = OpFlag;
+ RWIO (0xcf9, AccWidthUint8, 0x0, 0x06);
+}
+
+/*----------------------------------------------------------------------------------------*/
+/**
+ * outPort80 - Send data to PORT 80 (debug port)
+ *
+ *
+ *
+ * @param[in] pcode - debug code (32 bits)
+ *
+ */
+VOID
+outPort80 (
+ IN UINT32 pcode
+ )
+{
+ WriteIO (0x80, AccWidthUint8, &pcode);
+ return;
+}
+
+/**
+ * AmdSbCopyMem - Memory copy
+ *
+ * @param[in] pDest - Destance address point
+ * @param[in] pSource - Source Address point
+ * @param[in] Length - Data length
+ *
+ */
+VOID
+AmdSbCopyMem (
+ IN VOID* pDest,
+ IN VOID* pSource,
+ IN UINTN Length
+ )
+{
+ UINTN i;
+ UINT8 *Ptr;
+ UINT8 *Source;
+ Ptr = (UINT8*)pDest;
+ Source = (UINT8*)pSource;
+ for (i = 0; i < Length; i++) {
+ *Ptr = *Source;
+ Source++;
+ Ptr++;
+ }
+}
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